28878780

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{2371}}^1$

素因数の和:2419

約数の個数: 96

約数和(自身を含む): 95639040

約数和(自身を除く): 66760260

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 29, 30, 35, 42, 58, 60, 70, 84, 87, 105, 116, 140, 145, 174, 203, 210, 290, 348, 406, 420, 435, 580, 609, 812, 870, 1015, 1218, 1740, 2030, 2371, 2436, 3045, 4060, 4742, 6090, 7113, 9484, 11855, 12180, 14226, 16597, 23710, 28452, 33194, 35565, 47420, 49791, 66388, 68759, 71130, 82985, 99582, 137518, 142260, 165970, 199164, 206277, 248955, 275036, 331940, 343795, 412554, 481313, 497910, 687590, 825108, 962626, 995820, 1031385, 1375180, 1443939, 1925252, 2062770, 2406565, 2887878, 4125540, 4813130, 5775756, 7219695, 9626260, 14439390, 28878780]

約数ペア:

[(1, 28878780), (2, 14439390), (3, 9626260), (4, 7219695), (5, 5775756), (6, 4813130), (7, 4125540), (10, 2887878), (12, 2406565), (14, 2062770), (15, 1925252), (20, 1443939), (21, 1375180), (28, 1031385), (29, 995820), (30, 962626), (35, 825108), (42, 687590), (58, 497910), (60, 481313), (70, 412554), (84, 343795), (87, 331940), (105, 275036), (116, 248955), (140, 206277), (145, 199164), (174, 165970), (203, 142260), (210, 137518), (290, 99582), (348, 82985), (406, 71130), (420, 68759), (435, 66388), (580, 49791), (609, 47420), (812, 35565), (870, 33194), (1015, 28452), (1218, 23710), (1740, 16597), (2030, 14226), (2371, 12180), (2436, 11855), (3045, 9484), (4060, 7113), (4742, 6090)]